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In Situ Transmission Electron Microscopy Observation of the Growth of Bismuth Oxide Whiskers

Published online by Cambridge University Press:  03 March 2008

T. Mima ,
Y. Takeuchi ,
S. Arai ,
K. Kishita ,
K. Kuroda  and
H. Saka
T. Mima
Affiliation:
Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
Y. Takeuchi
Affiliation:
Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
S. Arai
Affiliation:
High-Voltage Electron Microscope Laboratory, Eco-Topia Science Institute, Nagoya University, Nagoya 464-8603, Japan
K. Kishita
Affiliation:
Material Analysis Department, Toyota Motor Corporation, Toyota 471-8542, Japan
K. Kuroda
Affiliation:
Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
H. Saka*
Affiliation:
Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
*
Corresponding author. E-mail: saka@nagoya-u.jp
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Abstract

Growth of bismuth oxide (most probably Bi2O3) was observed in situ in a transmission electron microscope. Bi liquid particles were dispersed on the substrates of diamond or SiO2. Introduction of oxygen up to ∼5 × 10−4 Pa resulted in formation of bismuth oxide (most probably Bi2O3) whiskers. The growth mechanism of the whisker was discussed in terms of a vapor-liquid-solid (VLS) mechanism. It is suggested that the liquid droplet of Bi acts as a physical catalyst for growth of bismuth oxide (most probably Bi2O3) whiskers.

Keywords

In situ TEMgas reactionwhiskerbismuth oxideVLS mechanism
Type
Materials Applications
Information
Microscopy and Microanalysis , Volume 14 , Issue 3 , June 2008 , pp. 267 - 273
Copyright
Copyright © Microscopy Society of America 2008

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References

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